Question

what is reflex action​

Answer 1

Reflex is an involuntary and sudden response to stimuli. It happens to be an integral component of the famed survival instinct.

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Answer 2

A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.